2D shader with strange pixel 'edges'?

I'm getting these weird edges on my sprites after trying to make a color swap shader. I'm not great with writing shaders, so that could be part of the issue. But, as you can see in the image, the edges are less than a pixel, if that makes any sense. I don't see how they're popping up.

Here is the shader I'm using.

Code (csharp):

1.  
2. Shader "Hidden/GuyColorShader"
3. {
4.     Properties
5.     {
6.         _MainTex ("Texture", 2D) = "white" {}
7.         _RampTex("RampTex", 2D) = "white"{}
8.  
9.  
10.     }
11.     SubShader
12.     {
13.         Tags {"Queue" = "Transparent+1" "RenderType" = "Opaque"}
14.         // No culling or depth
15.         ZWrite Off
16.         Blend SrcAlpha OneMinusSrcAlpha
17.  
18.         Pass
19.         {
20.             CGPROGRAM
21.             #pragma vertex vert
22.             #pragma fragment frag
23.          
24.             #include "UnityCG.cginc"
25.  
26.             struct appdata
27.             {
28.                 float4 vertex : POSITION;
29.                 float2 uv : TEXCOORD0;
30.             };
31.  
32.             struct v2f
33.             {
34.                 float2 uv : TEXCOORD0;
35.                 float4 vertex : SV_POSITION;
36.             };
37.  
38.             v2f vert (appdata v)
39.             {
40.                 v2f o;
41.                 o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
42.                 o.uv = v.uv;
43.                 return o;
44.             }
45.  
46.             sampler2D _RampTex;
47.  
48.             sampler2D _MainTex;
49.  
50.             fixed4 frag (v2f i) : SV_Target
51.             {
52.                 fixed4 hold = tex2D(_MainTex, i.uv);
53.                 fixed4 col = tex2D(_RampTex,float2(hold.r,.5));
54.  
55.  
56.  
57.                 col.a = hold.a;
58.  
59.                 return col;
60.             }
61.             ENDCG
62.         }
63.     }
64. }
65.  
66.  

I've tried changing the queue and render type, but no matter what, I'm getting those strange edges. The edges are definitely getting their colors from the gradient image I'm passing in, it's almost like the pictures are being blurred a little, but I have the import settings set to no compression.

Thank you for your time.

edit:
Also, the edge's ratio of edge size to pixel size gets worse the further the camera is zoomed out. But, if the camera's zoom/orthographic size is set to .54, and the player's position is at a whole number, then the edges are gone.

 

Do you have the texture's filtering set to point? If not, try that.

 

I knew I forgot to mention something, sorry. Yes, the filtering is set to point on all of the images.

I don't know if this helps any, but here is another image, before the shader is on the right, with the shader applied is on the left.

 

Untick "generate mipmaps" from the ramp texture.

 

Yup, got that too. These are the settings I'm using on everything (Except for read/write, that's only on the ramp), in case I'm forgetting something else with them.

I would upload my project if it would help, but there's no need to download 62 megs for this.

EDIT:

Also, in the quality settings, anti aliasing and anisotropic textures are off on all quality levels.